img12 - Chalkdust

An equilateral triangle, pointing left, with vertices at the three roots of -1.

The three solutions $x+i y$ of $z^3=-1$ form an equilateral triangle}

Clare (like gare) is a Chalkdust editor. In her spare time, she’s an assistant professor at Durham University. She likes Skittles, probability, and making the magazine look more like Cosmo.

Chalkdust dissertation prize
Calling all final-year students!
The big argument: What’s the best way to end a proof?
QED or $\square$ ?
Mathematics for the three-fingered mathematician
Robert J Low flips one upside down.
Fractional calculus: the calculus of witchcraft and wizardry
How can we differentiate a function 9¾ times?
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These puzzles appeared in Issue 02 of the magazine.
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Every issue we feature another great model on page 3 of our magazine. This time we look at what to do when zombies attack.

More from Chalkdust

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The big argument: What’s the best way to end a proof?

Mathematics for the three-fingered mathematician

Fractional calculus: the calculus of witchcraft and wizardry

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